Spookfish Swarm
Source: Starfinder #30: Puppets Without Strings
CR: 16 XP: 76,800
NE Tiny undead (incorporeal, swarm)
Init.: +10 Senses: blindsense (scent) 60 ft., darkvision 60 ft. Perception: +28
Defense
HP: 275
EAC: 30 KAC: 32
Fort: +18 Ref: +18 Will: +16
Offense
Speed: fly 40 ft. (Su, average)
Melee: swarm attack (3d10+15 C)
Offensive Abilities: distraction (DC 22), whelming curse (DC 22)
Statistics
Str: -1 Dex: +10 Con: — Wis: +7 Int: -4 Cha: -2
Skills: Acrobatics +28, Stealth +28, Survival +28
Ecology
Environment: warm land (Akiton)
Organization: solitary or school (2–4)
Special Abilities
<p><b>Whelming Curse (Su)</b> As a standard action, the spookfish swarm lashes out into a disorienting frenzy of flashing fins and ghostly currents around a creature within its space. That creature must succeed at a DC 22 Will save or be afflicted by the curse of the depths (see below). A creature that has a swim speed or that doesn’t need to breathe gains a +2 circumstance bonus on this save.<br/> <h3 class="title">Curse of the Depths</h3> <b>Type</b> curse; <b>Save</b> Will DC 22<br/> <b>Effect</b> The victim feels as though they are standing in chest-high water, no matter their current environment. The victim counts all terrain as difficult terrain and must spend 20 feet of movement to move 5 feet (and the victim can’t attempt to swim through this illusory water). When the victim rolls a natural 1 on an attack roll, they feel as though they have been fully submerged in water and must hold their breath or begin drowning (regardless of the availability of breathable air or any equipment that would normally allow them to breathe underwater); creatures that don’t need to breathe are immune to this effect. At the start of each subsequent round, the victim can attempt a Will saving throw to end the drowning effect of this curse.<br/> <b>Cure</b> The victim must spend 1 week fully submerged underwater; they can use equipment to breathe, but spending time in a submersible vehicle or domed underwater facility or settlement does not meet this requirement.</p>